Question

我一直想弄清楚我在这里做错了什么，我只是不明白。 Python说第22行有语法错误，但我不知道它有什么问题...请帮忙。这是另一个程序的一部分，但这个有问题。

# Destinations Module
# -------------------
# This module provides information about European destinations and rates
# All rates are in euros


def print_options():
    # Print travel options
    print("Travel Options")
    print("--------------")
    print("1. Rome")
    print("2. Berlin")
    print("3. Vienna")
    print("")


def get_choice():
    # Get destination choice
    while True:
        try:
            choice = int(input("Where would you like to go? ")
            if (choice < 1 or choice > 3):
            print("Please select a choice between 1 and 3.")
            continue
        except ValueError:
            print("The value you entered is invalid. Only numerical values are valid.)
        else:
            return choice


def get_info(choice):
    # Use numeric choice to look up destination info
    # Rates are listed in euros per day

    # Choice 1: Rome at €45/day
    if (choice == 1)
        return "Rome", 45

    # Choice 2: Berlin at €18/day
    elif (choice == 2)
        return "Berlin", 18

    # Choice 3: Vienna, €34/day
    elif (choice == 3)
        return "Vienna", 34

Answer 1

您的代码中存在多个错误。在代码中检查这个正确的版本和我的评论：

#!/usr/bin/python
# -*- coding: utf-8 -*-
def print_options():
    # Print travel options
    print("Travel Options")
    print("--------------")
    print("1. Rome")
    print("2. Berlin")
    print("3. Vienna")
    print("")


def get_choice():
    # Get destination choice
    while True:
        try:
            # here you need a right bracket
            choice = int(input("Where would you like to go? "))
            # here you can put each condition into its own block
            if (choice < 1) or (choice > 3):
                #here you need some identation
                print("Please select a choice between 1 and 3.")
                continue
        except ValueError:
            # here you have to put the whole string into ""
            print("The value you entered is invalid. Only numerical values are valid.")
        else:
            return choice


def get_info(choice):
    # Use numeric choice to look up destination info
    # Rates are listed in euros per day

    # Choice 1: Rome at €45/day
    # here you have to add a colon after every if statement
    if (choice == 1):
        return "Rome", 45

    # Choice 2: Berlin at €18/day
    elif (choice == 2):
        return "Berlin", 18

    # Choice 3: Vienna, €34/day
    elif (choice == 3):
        return "Vienna", 34

Python调试旅行计划

1 个答案: